Supraspinatus

shoulder-muscle-model-9-labeledMuscle Origin

Supraspinous fossa of scapula to greater tubercle of the humerus.

Supraspinatus muscle originates from the supraspinatous fossa. Distal attachment of the levator scapulae muscle is also on the medial aspect of the fossa. The supraspinatous fossa is bounded by the spine of scapula on the inferior side, acromion process on the lateral side and the superior angle of scapula on the superior side. Wiki

Insertion

Superior facet of greater tubercle of humerus.

The supraspinatus tendon is inserted into the superior facet of the greater tubercle of the humerus. Wiki

Action

Abducting arm at shoulder.shoulder-muscle-model-5-labeled

Abduction of arm and stabilizes humerus.

Innervation – Nerve control

Suprascapular nerve.

The suprascapular nerve innervates the supraspinatus muscle as well as the infraspinatus muscle. It comes from the upper trunk of the brachial plexus. Wiki

Artery

Suprascapular artery.

It is a branch of the thyrocervical trunk. The artery enters the supraspinatous fossa of the scapula, and then it travels close to the bone, running between the scapula and the supraspinatus muscle, to which it supplies branches. Wiki

Antagonist muscles

Pectoralis major and minor, Subclavius, Serratus anterior, Trapezius, Latissimus dorsi, Rhomboid major and minor, and Levator scapulae.

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

Additional Resources
Sports Lab
Wiki

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